i got a bug in lvl C9 on normal settings, that my towers won't attack certain monsters when they are in range (made me lose because of the mass wave monsters that all just passed my turrets undamaged)
when i said i wanted to go all that happened was that he said he opened it and then an endless stream of dots... going on for 5 minutes now and i can't go back or something
there are some bugs, but they don't mess up the game
here's another i discovered: if u sent a fleet with a colony ship to an uncolonised planet, and u let it retreat at any point, the colony ship is gone and u got the planet as a colony, so if u send it, and let it retreat right after u got yourself an instant colony
i found a bug where u can research technologies that u don't have enough resources for: if u click on 'auto', only the amount of credits is required and substracted